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Lexington Police
Department
Subject: Stop And Frisk and
Threshold Inquires
Policy Number:
41L Accreditation Standards:
Reference: 1.2.3(a); 1.2.4(b) Effective Date:
3/11/13
New
Revised
Revision
Dates:
1/24/19
By Order of: Mark J. Corr, Chief of Police
The Municipal Police Institute, Inc. (MPI) is a private, nonprofit charitable affiliate of the
Massachusetts Chiefs of Police Association. MPI provides training and model policies
and procedures for police agencies. This policy is an edited version of MPI Policy 1.07,
“Stop and Frisk and Threshold Inquiries.”
GENERAL CONSIDERATIONS AND GUIDELINES
Any individual walking down the street is insulated from police action by the Fourth
Amendment of the U.S. Constitution. Therefore, before police can effect a seizure or
detention, even if only momentarily, the police must have adequate cause to do so.
On the other hand, police officers often engage people on the street in conversation
and are encouraged to do so under the community policing philosophy. Simply walking
over to a person and engaging in a conversation is not a seizure or detention, it is just
a conversation and nothing more. The person talking with the officer has an absolute
right to walk away in such encounter.
A police officer, in appropriate circumstances, may temporarily stop and briefly detain
a person for the purpose of inquiring into possible criminal behavior even though the
officer does not have probable cause to make a lawful arrest at that time. In addition,
an officer may frisk such a person for weapons as a matter of self-protection when the
officer reasonably believes that his/her own safety, or that of others nearby, is
endangered. The purpose of this temporary detention for questioning is to enable the
police officer to determine whether to make an arrest, investigate further, or to take no
police action at that time. (M.G.L. Ch. 41 § 98)
This policy recognizes that police officers are also charged with community caretaking
functions that do not require judicial justification. These do not include the detection,
investigation or the acquisition of evidence related to crime, i.e. approaching a vehicle
parked in a breakdown lane will not be an investigatory stop or checking on motorists
in rest areas.i
A search for weapons is permissible where a police officer has reason to believe that
[s]he is dealing with an armed and dangerous individual, regardless of whether the
officer has probable cause to arrest for a crime. The officer need not be absolutely
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certain that the individual is armed. The issue is whether a reasonably prudent person
in the circumstances would be warranted in his/her belief that the officer’s safety, or
that of others, was in danger.ii
Investigatory "stops" by the police are considered "forcible" in contrast to "voluntary,"
and are, therefore, held to be "seizures" under the Fourth Amendment. The degree of
force appropriate to enforce a "stop" in a particular case is dependent upon the
surrounding facts and circumstances of that incident.
If an officer fails to adequately enforce a "stop", it could result in the escape of a
dangerous criminal or pose a serious threat to the lives and safety of other persons.
Conversely, the use, display or threatened use of force to carry out an investigatory
"stop", when such force was not justified under the circumstances, could result in a
finding by the court that an arrest had occurred without the necessary element of
probable cause and any evidence obtained as a result might be excluded. It should
be noted that a premature or unnecessary "stop" could sometimes destroy a good
investigation, which could have resulted in a valid arrest and a successful conviction.
Police officers should never hesitate to make an investigatory stop and a necessary
frisk under appropriate circumstances in order to meet the practical needs of effective
law enforcement. They should avoid the indiscriminate or unjustified use of this
authority. Such action is not only frowned upon by the Courts but detracts from the
professional image of the police by the citizens of the community they serve.
It is the policy of the Lexington Police Department that:
When an officer has reasonable suspicion of criminal activity based on specific,
articulable facts and reasonable inferences an officer may temporarily stop and
detain a person or vehicle; and
Once stopped, a person may be frisked for weapons only if the officer has
reasonable suspicion that the suspect is unlawfully armed or has reasonable
belief that the suspect is armed and dangerous.
PROCEDURE
A. Definitions:
1. Investigative Detention: As used in this policy, includes what is
commonly referred to as "stop & frisk" and also the very similar
procedures often referred to as "threshold inquiry."
2. Stop & Frisk: The warrantless stopping, questioning and frisking of
suspicious persons derived from the U.S. Supreme Court case Terry v
Ohio, 392 U.S. 1, 88 S. Ct. 1868 (1968).iii
3. Threshold Inquiry: The warrantless stopping, questioning and frisking of
suspicious persons based on a Massachusetts General Law Ch.41§ 98.
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B. Stops [1.2.4(b)]:
1. It is a basic police duty to check on suspicious persons or circumstances,
particularly in the nighttime and in crime-prone areas.
2. An officer may make a brief investigative stop and inquiry if he or she has
a reasonable suspicion that the person involved:iv
a. Has committed a crime.
b. Has been or is committing a crime.
c. When [s]he seeks to prevent a crime which [s]he reasonably
believes is about to be committed.
3. A police officer has the authority to stop a person for an investigative
inquiry in any place where the officer is lawfully present, including:
a. Any public place;
b. Any place or area open to the public; and
c. Any private premises entered with a valid warrant, by consent, or
under emergency circumstances.
4. There is no precise formula for determining the legality of an investigatory
stop. However, it must be based upon a reasonable belief or suspicion
on the part of the officer that some activity out of the ordinary is taking
place, that such activity is crime-related and that the person under
suspicion is connected with or involved in that criminal activity. The
officer must be able to articulate this reason with specificity when called
upon to document such actions.
5. An investigatory stop does not require probable cause, rather it requires
the lesser standard of reasonable belief based on specific, articulable
facts and reasonable inferences. It may be based upon the officer's own
observations or information supplied by others. The information on which
the officer acts should be well founded and reasonable. Lastly, a hunch
or pure guesswork, or an officer's unsupported intuition, is not a sufficient
basis.
6. No single factor alone is normally sufficient. The following are some, but
not all of the factors, which may be considered in determining the
reasonableness of an investigative stop by a police officer in the field:
a. Personal observations by the officer and his/her police training
and experience;
b. The officer’s knowledge of criminal activity in the area;
c. The time of the day or night and the place of observation;
d. The general appearance and demeanor of the person and any
furtive actions that are indicative of possible criminal conduct;
e. The person’s proximity to the scene of a recently reported crime;
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f. Unprovoked flight of an individual upon noticing the police;v
g. Specific knowledge of the person’s prior criminal record or of
his/her association with known criminals;
h. Visible objects in the person’s possession or obvious bulges in
his/her clothing;
i. Resemblance of the individual to a person wanted for a known
crime;
j. Information received from police sources or from other reasonably
reliable sources of information.
7. The fact that the individual has aroused the police officer's suspicion
should cause the officer to make his/her approach with vigilance and to
be alert for any possibility of danger.
a. A police check of suspicious circumstances may uncover the
commission of a serious crime or the presence of a dangerous
criminal.
b. If the person stopped had just committed a major crime, [s]he may
be a threat to the officer's safety, or may suddenly attempt to flee
from the scene.
8. Length of Stop: No hard and fast rule can be formulated to determine
the period of time required for an investigative detention but it should be
reasonably brief under the particular circumstances.vi
a. A stop may only last long enough for the officer to make the
threshold inquiry into whether the suspicions were or were not well
founded using the least intrusive means possible.
b. If the answers given by the suspect are unsatisfactory because
they are false, contradictory or incredible, they may serve as
elements or factors to establish probable cause and extend the
investigative effort.vii
c. The period of investigative detention should be sufficiently brief so
that the "stop" cannot be construed as an "arrest," which would
require probable cause.viii
C. Pat-Down Frisks [1.2.4(b)]:
1. If a police officer reasonably believes that his/her own safety or that of others is
in danger, [s]he may frisk or pat down the person stopped and may also search
the area within that person's immediate control in order to discover and take
control of any weapon that may be used to inflict injury.ix (M.G.L. Ch. 41 § 98)
a. It is not necessary that the officer be absolutely certain that such person is
armed. However, the officer must perceive danger to himself/herself or
others because of events leading to the stop or which occurred after or
during the stop.
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b. If the officer has a reasonable belief or suspicion, based upon reliable
information or personal observation, that a weapon is being carried or
concealed in some specific place on the person of the individual, [s]he
should immediately check that area before performing a general pat down.
c. A frisk should not be made as a pretext to search for evidence of crime; it
must be limited to protective measures.
d. The frisk must initially be limited to an external pat down of the suspect's
outer clothing. However, if such outer clothing is bulky, (like a heavy
overcoat) it may be opened to permit a pat down of inner clothing.
e. Officers of the same sex should be used for pat-down frisks, when available.
When a pat-down is to be conducted on a member of the opposite sex,
officers shall use the preferred method for frisking of a person of the opposite
sex (e.g. use the back of the hand or a baton)
f. If the officer feels an object, which could reasonably be a weapon, [s]he may
conduct a further search for that particular object and remove it.
g. If, after completing a pat down of the suspect for weapons, the officer does
not feel an object, which could reasonably be a weapon, the search shall be
discontinued.
h. If, while frisking a stopped person, the officer discovers an illegal firearm,
contraband, stolen property or evidence of a crime and probable cause to
arrest develops, an arrest should be made and a search incident to that
arrest should be made.
i. If the subject is in control of a container that is immediately accessible, an
exterior pat down of the container should be done. If the outer shell is hard
and an exterior pat down would not prove fruitful in the detection of any
weapons then the item should be opened and a cursory review of its
contents should be reviewed prior to returning the container.
NOTE: Hard and Soft Locked Containers: A pat frisk can be extended to both
hard and soft-shell containers. If a hard or soft shell container is locked,
entry is not permissible without probable cause. A strategy for officer
safety should be for officers to remove containers from the possession of
the subject for a brief period and return them as soon as the encounter
is complete.
D. Use of Force:
1. If the person fails or refuses to stop when so directed by a police officer,
reasonable force and physical restraint (including handcuffs) may be
necessary, depending upon the circumstances.x
2. Force may be used to “stop” an individual, as long as the force is both necessary
and proportionate to the situation.xi If an officer is attacked, sufficient and
reasonable force may be used to defend themselves and to ensure personal
safety. (See Department policy 41B – Use of Force (Defensive Actions)
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E. Questioning Stopped Persons [1.2.3(a)]:
1. When an officer makes a decision to stop a person for investigative
purposes, unless the officer is in uniform and conspicuously displaying
his/her badge of office, [s]he shall identify himself/herself as a police
officer as soon as it is safe and practical to do so and also announce the
purpose of his/his inquiry unless such information is obvious.
a. An investigatory or threshold inquiry should begin with exploratory
questions regarding the person’s identity and his/her purpose.
b. Every officer should acquire the ability to initiate an investigative
inquiry in a calm, conversational manner in order to gain as much
information as possible without placing the suspect on the
defensive.
c. Even in brief conversations, an alert and perceptive officer can
detect or sense that something is wrong, can articulate that
information with specificity and determine that further police
investigation is required.
d. An officer should always bear in mind, however, that [s]he must
have a firm foundation for his/her initial suspicions in order to
justify an investigative detention and inquiry. [S]he must be able
to articulate and commit his/her justification to writing.
2. Once a stop is made, questioning of the person should be conducted at
the location of the stop.
a. Investigative stops are intended to be on-the-spot inquiries.
Officers should always be aware of safety when questioning a
person on the spot.
b. To verify the information obtained from the person it may be
necessary to move a short distance to a radio or telephone.
c. Under special circumstances, such as the presence of a hostile
crowd, heavy traffic or the necessity to use the police radio, the
person may be placed in the rear seat of a police vehicle.
d. As part of a threshold inquiry, the person may be detained for a
short time so that an eyewitness may be brought to the scene to
make an in-person identification.xii See Department policy 41N -
Eye Witness ID, Show-Ups and Photo Arrays.
e. Ordering a person to stop or if a stopped person is told to move to
another location, or tries to leave, but the officer orders him/her to
stay or otherwise limits his/her movement, the person may be
considered "in custody" (although not under arrest).xiii Once a
person is in custody, additional questioning by police must be
preceded by Miranda warnings and receipt of a waiver before
further questioning. (See Departmental policy 41K -
Interrogating Suspects and Arrestees.)
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F. Motor Vehicle Stops:
1. When an investigative stop involves a motor vehicle, the vehicle may be
stopped and its occupants may be briefly detained and questioned by the
police if there is a reasonable suspicion of criminal activity or a motor
vehicle violation.xiv All police officers must be especially alert and
watchful when making an investigative stop of a motor vehicle as many
officers have been seriously injured or killed during this police activity.
a. Police cannot randomly stop motorists to check the orderliness of
license and registration.
b. During the course of a stop, probable cause to search the vehicle
may develop – such as through conversation with the occupants
or plain view observations.xv
c. During a traffic stop, police officers may not order the driver or
occupant out of the vehicle without a reasonable belief that the
officer’s safety, or the safety of others, is in danger.xvi
i. If the occupant(s) of a vehicle are ordered out of the
vehicle, they may be frisked if there is reason to believe
that they may be armed or dangerous and that the police
officers or others nearby may be endangered.xvii
ii. Even after frisking the occupants, if officers have reason to
believe that there is still danger, they should inspect those
areas of the motor vehicle readily accessible to an
occupant that may contain a dangerous weapon before
allowing occupants to re-enter the vehicle.
d. A protective search of the interior of a motor vehicle must be
limited to what is minimally necessary to determine whether the
suspect is armed and to remove any weapon discovered.xviii
e. A protective search for weapons in a motor vehicle must be
confined to the area from which the occupant might gain
possession of a weapon.xix
f. Exit orders are permissible where officers have reasonable
suspicion of criminal activity. They must be proportional to the
suspicion that prompted the intrusion and serve to prevent the
defendant's escape, protect the safety of the officers from a fleeing
vehicle or high-speed pursuit. (Comm. vs Bostick 450 Mass 616)
2. While an officer may detain a passenger during a traffic stop, even
without particularized reasonable suspicion that the passenger has
committed any crime, police officers may not continue the detention of
the passenger beyond the completion of the issued citation, without
further reasonable suspicion to investigate matters not related to the
traffic offense.xx
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3. Random stops of motor vehicles in the absence of reasonable suspicion
of motor vehicle violations or criminal activity constitutes an
unreasonable seizure in violation of the Fourth Amendment and any
evidence obtained as a result of such impermissible stops are excludable
in court.xxi
G. Documentation:
Police officers initiating investigative detentions shall notify dispatch as soon
as is reasonably possible and provide information relative to the identity of the
person(s) stopped and all important facts. A journal note will be created in all
cases of investigative detentions regardless of the outcome.
i Com. v. McDevitt, 57 Mass. App. Ct. 733 N.E.2d 404 (2003); Comm. v. Evans, 436 Mass.
369, 764 N.E.2d 841 (2002).
iiCom. v. Matthews, 355 Mass. 378, 244 N.E.2d 908 (1969).
iii Terry v. Ohio, 392 U.S. 1, 88 S.Ct. 1868 (1968).
iv Com. v. Riggieri, 438 Mass. 613, 782 N.E.2d 497 (2003).
v Illinois v. Wardlow, 120 S.Ct. 673 (2000).
vi U.S. v. Sharpe, 470 U.S. 675, 105 S.Ct. 1568 (1985); Com. v. Tossi, 14 Mass. App. Ct. 901,
442 N.E.2d 419 (1982).
vii Com. v. Wilson, 360 Mass. 557, 276 N.E.2d 283 (1971).
viii Com. v. Torres, 424 Mass. 153, 674 N.E.2d 638 (1997).
ix See M.G.L. c. 41, s. 98
x Com v. Pandolfino, 33 Mass. App. Ct. 96, 596 N.E.2d 390, rev. den. 413 Mass. 1106, 600
N.E.2d 1000 (1992).
xi Com. v. Reed, 23 Mass. App. Ct. 294, 502 N.E.2d 147 (1986); Com. v. Borges, 395 Mass.
788, 482 N.E.2d 314 (1985).
xii Com. v. Salerno, 356 Mass. 642, 255 N.E.2d 318 (1970).
xiii Com. v. Perry, 62 Mass.App.Ct. 500, 503- 504, 818 N.E.2d 185, 188-189 (2004).
xiv Delaware v. Prouse, 440 U.S. 648, 99 S.Ct. 1391 (1979).
xv Com. v. Lantigua, 38 Mass. App. Ct. 526, 649 N.E.2d 1129 (1995); Com. v. Jimenez, 22
Mass. App. Ct. 286, 493 N.E.2d 501 (1986).
xvi Com. v. Gonsalves, 429 Mass. 658, 711 N.E.2d 108 (1999) rejecting Penn. v. Mimms, 434
U.S. 106, 98 S.Ct. 330 (1977).
xvii Com. v. Hawkes, 362 Mass. 786, 291 N.E.2d 411 (1973); Com. v. Lantigua, 38 Mass. App.
Ct. 526, 649 N.E.2d 1129 (1995).
xviii Com. v. Silva, 366 Mass. 402, 318 N.E.2d 895 (1974).
xix Com. v. Almeida, 373 Mass. 266, 366 N.E.2d 756 (1977).
xx Com. v. Ellsworth, 41 Mass.App.Ct. 554, 671 N.E.2d 1001 (1996). United States v. Starks, 301 F.Supp.2d 76
(D.Mass.2004).
xxiDelaware v. Prouse, 440 U.S. 648, 99 S.Ct. 1391 (1979).